Chapter 5 Review Game

1. Why is color a physical property?

• Color can be observed without changing the object.

•2. What is a physical property that does not change with the amount of matter?

•Melting point, boiling point and density do not change with the amount of matter.

•3. What happens during a physical change?

•The appearance of matter change, but the composition does not change.

•4. What type of change is a change of state?

•A physical change

•5. What happens during a chemical change?

•During a chemical change, substances are change into different substances.

•6. What are three clues that a chemical change has occurred?

•Change in color, loss or gain of energy, change of smell and production of a gas or a solid

•7. What is an examples of a chemical change?

•Possible answers could include anything burning, rusting or tarnishing. Other answers are also possible given teacher approval.

•8. What is the law of conservation of mass?

•The law of conservation of mass states that the total mass of matter is the same before and after a physical or chemical change.

•9. What changes when the mass of an object increases while the volume stays the same?

•A. Color•B. Length•C. Density•D. Height

Answer = C, density

•10. What word best describes the type of materials that attract iron?

•A. Magnetic•B. Chemical •C. Mass•D. Physical

•Answer = A, magnetic

•11. Which is an example of a chemical property?

•A. Color•B. Mass•C. Density•D. Ability to burn

•Answer = D, ability to burn

•12. Which is an example of a physical change?

•A. Metal rusting•B. Silver tarnishing•C. Water boiling•D. Paper burning

•Answer = C, water boiling

•13. What characteristic best describes what happens during a physical change?

•A. Composition changes•B. Composition stays the same•C. Form stays the same•D. Mass is lost

•Answer = B, composition stays the same

•14. Which is an example of a chemical change?

•A. Water freezes•B. Wood is carved•C. Bread is baked•D. Wire is bent

•Answer = C, bread is baked

•15. Which is NOT a clue that could indicate a chemical change?

•A. Change in color•B. Change in shape•C. Change in energy•D. Change in odor

•Answer = B, change in shape

•16. What property stay the same during physical and chemical changes?

•A. Density•B. Shape•C. Mass•D. Arrangement of particles

•Answer = C, mass

•17. What kind of change is taking place when you cut a piece of cake from the whole?

•Answer: physical change

•18. What kind of change is taking place when a candle is being burnt?

•Answer = a chemical change

•What could you do to an object to cause a chemical change?

•A. Cut it•B. Paint it•C. Throw it•D. Burn it

•Answer = d, burn it

•Which of the following physical properties is size dependent?

•A. Density•B. Mass•C. Volume •D. Weight

•Answer = A, density

•Which of the following choices describes a physical change?

•A. Pouring an acid onto calcium carbonate

•B. Dropping an antacid tablet into water•C. Heating water to its boiling point•D. Pouring vinegar onto baking soda

•Answer = c, heating water to its boiling point

•Which of the following occurs as you heat a liquid to its boiling point?

•A. Condensation•B. Melting•C. Vaporization•D. Freezing

•Answer = c, vaporization

•Which of the following is a chemical reaction?

•A. Making ice cubes•B. Toasting bread•C. Slicing a carrot•D. Boiling water

•Answer = b, toasting bread

•When you making and eat scrambled eggs, many changes occur to the eggs. Which of the following best describes a chemical change?

•A. Crack the eggs•B. Scramble the eggs•C. Cook the eggs•D. Chew the eggs

•Answer = C, Cook the eggs

•What is the formula that should be used to find density?

•Answer = D = m ÷ v•(Density = mass divided by volume)

•Tell me at least 3 physical properties.

• Answer = Physical properties include: state, color, shape, smell, taste and texture, mass,

volume, density, melting point and boiling point.

•What happens if vaporization or condensation occurs?

•Answer = substance changes from a liquid to a gas

•What is sublimation?

•Answer = when a solid changes directly to a gas

•What is deposition?

•Answer = when a gas changes to a solid without ever becoming a liquid

•Fill in the blanks:

•If I observe the color of a leaf, I am looking at its _____________. When leaves change color in the fall, it is a ________________.

•Answer = physical property; chemical change

•What does the law of conservation of mass say?

•Answer = the law of conservation of mass says that mass cannot be created or destroyed during physical and chemical changes that take place.